The third party is the subtenant, who rents the property from the tenant. Another word for sublease is "sublet."In a sublet, the new renter makes rent payments to the property owner. A sublet allows direct landlord communication with the subtenant, unlike a sublease, where the legal relationship is between the primary and subtenant. We talk about a sublease when the original tenant (sublessor) rents out all or some of the space to a third party (sublessee). Contact with the landlord. In a sublease, the original tenant and the subtenant make the deal, while a sublet involves the landlord and the subtenant directly. Sublet and sublease are two different words for the same concept. The suffixes of each word, "let" and "lease," both mean to rent out a property. In a sublet, the former tenant's lease is transferred to the new tenant in a sublet arrangement.